Piano-pedal manual attachment



(No Model.) 2 Sheets-Sheet l.

H. B.. MOORE.

PIANO PEDAL MANUAL ATTACHMENT.

N0. 891,181. Patented 0013. 16,1888.

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WITNESSES:

ATTORNEYS.

(No Model.) 2. Sheets-Sheet 2.

H. R. MOORE.

PIANO PEDAL MANUAL ATTACHMENT.

N0. 391,181. Patented 0013. 16, 1888.

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UNITED STATES PATENT OEEieE.

HARTWELL R. MOORE, OF NORVALK, OHIO.

PlANO-PEDAL MANUAL ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 391,181, dated October 16, 1888. Application lili-d July 20. IESS. Serial No, l-",l. (No model.)

To @ZZ whom it may concern:

Beitknown that I, HARTWELL R. MOORE, of

Norwalk, in the county of Huron and State of Ohio, have invented a new and Improved PiA anoPedal hilanual Attachment, of which the following is afull, clear, and exact description.

rlhe object of my invention is to provide a piano with pedal-levers which may be attached at pleasure, so as to enable aperformer to play the bass with the foot, and thereby secure organ-pedal practice while performing on a piano; and it consists in the parts which will be hereinafter described, and pointed out in the claims.

The attachment is particularly adapted to the upright piano as at present constructed, and may be easily attached thereto or removed without interfering with the appearance or aetion of the piano, so that the performer can at pleasure operate the piano wit-hout the pedals or bring the pedals into action separately or 1n concert with the key-movement.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure l represents a perspective sectional elevation of a piano provided with my improvement, and Fig. 2 is a detail perspective of the device.

A B represent the easing, C the bed, and D E the keys, of an upright piano of the usual form, and remain unchanged so far as outward appearance or use is concerned.

The pedal attachment proper consists of a rectangular frame having side pieces, F, outer end pieces, G G', and inner end pieces, H H.

I l are alternately-arranged pedals engaged side by side within the frame. The outer end of each pedal is engaged by a tlat spring, J, to the outer frame-piece G. The inner end of each pedal lies between and extends beyond the two parallel inner end pieces, H H. A series of pins, K, connect the two pieces H H and separate the pedals-that is to say, these pins are interposed, respectively, between the pedalsso as to prevent the contact of and retain each pedal in its proper position. The inner under side of each pedal is rabbeted at a. A locking-rail, L, is hinged to the inner lower framepiece, H, the letterZ representing -a strip-hinge.

L is a short arm mounted in an opening in the side frame-piece, F, the inner end ot' said arm being engaged to the rail L, the outer end thereof being provided with a pinion, L2. The adjacent parts of the rail L and piece H' are recessed for the reception of the arm L'.

M is a ratchetbar mounted by roller M and strap M2 to the inner outer side of the side frame-piece, F. The rack-teeth are on the under side and they engage the pinion L2 aforesaid.

M3 is a knob on the ratchet-bar M.

Attached to the rear under side of the piano is alongitudinal recessed strip, N. A bar, N, is secured to and suspended from the under front side ofthe piano. The strip N and bar N lie parallel. A series of short arms, O, are pivotally engaged at their inner ends tothe strip N, the other ends of said arms, which are rabbeted on the upper side, extending ontward, so as to lic between the strip N and the under side of the piano. A series of pins, O', connect the piano and strip N. These pins lie, respectively, between the arms O and serve to retain said arms in their proper positions. The number of arms O corresponds with the number of pedals. A series of Vertical rods, P, have their lower ends engaged to the arms O, respectively, near their outer ends. Aseries of levers, Q, is fulcrumed at Q to a strip, Q2, attached to the bed of the piano. rJlhe upper end of each rod P is connected to one end of a lever, Q, the other end of said lever be ing engaged to the lower end of a verticallymounted spring-actuated pin, R, the spring consisting of a rod, R, engaged by a staple, It, and prong R" tothe bed G, the outer end of said spring being engaged in an opening in the side of the pin R. Fach of said pins is located nnder the rear end of one of the pianoA keys.

The operation is as fellows: The pedal-frame is held in position to the piano by pins projeeting from said frame and engaging openings in the piano, which pins and openings are not shown in the drawings. The springs J normally hold the pedals upward, and the inner ends of the pedals rest upon the outer ends, respectively, of the arms O. The pin R and the end of the lever Q, which engages said pin are normally forced downward by means of the spring R', and the outer end ol' said lever IOO and the rod P, to which it is engaged, also the arms O, are held upward. By this arrangement the inner ends of the pedals are held in Contact with the outer ends of the arms O and the upper ends ofthe pins R held out of contact with the keys. By pressing` down on a pedal an arm, O, rod P, lever Q, and pin R are actuated, the pin being forced upward'under the inner end of a key, so as to cause said key to sound the note it represents. Then the foot is released from a pedal, the springs return the parts to their normal positions. By moving` the ratchet-bar M in one direction the pinion L2, arm L, and lockingrail L are turned so as to turn said rail upward, as shown in Fig. 2, and cause it to lie under and against all of the pedals, so as to lock them and prevent their movement by foot or other pressure. By moving the ratchet-bar in an opposite di rection the pinion L2l and arm L/ will turn the locking-rail L downward, so as to leave the pedals free to act.

Having thus described my invent-ion, what I claim as new, and desire to secure by Letters Patent, is-

l. In a pedal attachment, a pedal and key, in combination with an arm, O, adapted to engage said pedal, the rod P, lever Q, and springactuated pin R, substantially as shown and described.

2. In a pedal attachment, a frame provided with pedals and a rail for locking said pedals, substantially as shown and described.

3. In a pedal attachment, a frame provided with pedals, in combination with a rail for locking` said pedals, and a ratchet pinion and arm, L', for actuating the rail, substantially as shown and described.

4. In a pedal attachment, a frame provided with spring-actuated pedals and a rail for locking said pedals, substantially as shown and described. HABTWELL R. MOORE.

Vitnesses:

F. NV. VAN DUsEN, T. R. STRONG. 

